Crop & Pest Report

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Weeds

Soybean Yield Loss from Leaf Burn (06/18/15)

Question: Do you have any information on soybean response to Flexstar applied postemergence? I have many growers questioning what, if any yield loss occurs when spraying this herbicide.

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Noxious and Invasive Weed Guides Available (06/18/15)

Two NDSU publications are available. “A Guide to North Dakota Noxious and Troublesome Weeds”, W-1691 has been reprinted, and “Identification and Control of Invasive and Troublesome Weeds in North Dakota”, W-1411 has been revised and reprinted.

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Pasture Grass Injury from Herbicides (06/18/15)

The following is information provided by Dr. Rod Lym, NDSU Weed Scientist.

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Valor use in Dry Beans (06/04/15)

Question: I heard yesterday Valor does not have a dry bean label for ND anymore but OK in MN though. What am I missing here Rich?

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wdsci.zollinger.wheat.contact injury

Contact Injury on Wheat (06/04/15)

Question: Does this look like a contact herbicide on wheat leaves? There is damage on one side of field and less as you go farther out into field. The injury is greatest along the whole field edge. The adjacent field is soybeans and I think it was sprayed prior to beans emerging. So maybe a burn down product was used, do you know what may have been used as a contact burn down product?

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Weed Control in Dry Beans (05/21/15)

The following is a question from a consultant in NE. The answer can apply to dry bean growers in ND.

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Conversion of Dry to Wet Metribuzin (05/21/15)

Question: I was wondering if you could help me clarify some questions that we have been getting from crop consultants and retailers lately. There is a trend of growers wanting to use liquid metribuzin instead of dry formulations due to ease of handling and sprayer cleanout issues. I have seen a lot of confusion in the field about what the conversion of dry formulations to the liquid equivalent is.

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Control of Cover Crops (05/21/15)

Question: I am wondering if you have done any work on residual control of turnips and radish planted as a cover crop. We had several areas planted last fall and with the dry weather they did not germinate. I am wondering what by best option for residual control in soybeans will be. I am thinking Authority Assist.

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